diff --git a/libavcodec/proresdsp.h b/libavcodec/proresdsp.h
index a9df91851f..706162af52 100644
--- a/libavcodec/proresdsp.h
+++ b/libavcodec/proresdsp.h
@@ -24,6 +24,7 @@
 #define AVCODEC_PRORESDSP_H
 
 #include <stdint.h>
+#include "dsputil.h"
 
 #define PRORES_BITS_PER_SAMPLE 10 ///< output precision of prores decoder